Ioanna Lykourentzou Giorgos Mpardis Vassilis Nikolopoulos Vassilis Loumos Dynamic Reliability Assessment of Multiple Choice Tests in distributed E-Leaning Environments: A Case Study. 73-80 2007 AIAI http://dx.doi.org/10.1007/978-0-387-74161-1_9 conf/ifip12/2007aiai db/conf/ifip12/aiai2007.html#LykourentzouMNL07